Banefire

Banefire deals X damage to target creature or player. If X is 5 or more, Banefire can't be countered by spells or abilities and the damage can't be prevented.

Dragonskull Summit

Lightning Strike

1R

Fight with Fire

Kicker {5}{R} (You may pay an additional {5}{R} as you cast this spell.) Fight with Fire deals 5 damage to target creature. If this spell was kicked, it deals 10 damage divided as you choose among any number of targets instead. (Those targets can include players and planeswalkers.)

Fanatical Firebrand

Haste {T}, Sacrifice Fanatical Firebrand: It deals 1 damage to any target.

Drill Bit

Spectacle {B} (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.) Target player reveals their hand. You choose a nonland card from it. That player discards that card.

Pestilent Spirit

Menace, deathtouch Instant and sorcery spells you control have deathtouch. (Any amount of damage they deal to a creature is enough to destroy it.)

Light Up the Stage

Spectacle {R} (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.) Exile the top two cards of your library. Until the end of your next turn, you may play those cards.

Skewer the Critics

Spectacle {R} (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.) Skewer the Critics deals 3 damage to any target.

Theater of Horrors

At the beginning of your upkeep, exile the top card of your library. During your turn, if an opponent lost life this turn, you may play cards exiled with Theater of Horrors. {3}{R}: Theater of Horrors deals 1 damage to target opponent or planeswalker.

Blood Crypt

({T}: Add {B} or {R}.) As Blood Crypt enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Shock

Shock deals 2 damage to any target.

Swamp

({T}: Add {B}.)